[Brian]

Happy to help, Kevin! Just go ahead and set the action up with whatever start and due time you want the initial one to have, then choose the "Start again 8 hours after completion" option.

The start time will be pushed out (roughly) 8 hours from whenever you click it, and the due time will be pushed out a little bit farther than that - enough to give you the same amount of time between the start and due dates that the original item had.

As an example, imagine you have an item that started today at 2pm, and it's due today at 3pm. If you complete it at 2:30, the new item will start at 10pm and be due at 11pm. (We round to the nearest hour because of the "8 hour" setting. If you want the item to start at 10:30, you can use "480 minutes" instead. Similarly, "X Days" will round to the nearest day.)

Also, the due date isn't required. If you have an item with a start date but no due date, OmniFocus will bump that out by 8 hours but won't give it a due date.

Hope this helps!